Yes, Larry, mine came with only one pony screw and there were no spares in my workbench and no spares in the UK! But they did me proud in the end.
It's a powerful locomotive, just like the prototype.
As to 5339, well, of course I got it wrong, it was 5399 that I should have mentioned and these are 5 "sightings" in various publications:
5399
1960
Barmouth train at Glyndyfrdwy. Loco often seen on the line, withdrawn 1962
5399
1962
Up train to Chester at Garth Goch, loco withdrawn 1962
5399
1961
DOWN train leaving Dolgelley
5399
1960
UP bay platform, Barmouth
5399
1961
Express (?holiday extra?) passing Carrog